package com.sky.mapper;

import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;

/**
 * 套餐接口业务层
 */
@Mapper
public interface SetmealDishMapper {

    /**
     * 根据分类id查询与该分类关联的套餐的id
     *
     * @param categoryId
     * @return
     */
    @Select("select count(*) from setmeal where category_id = #{categoryId}")
    Integer countByCategoryId(Long categoryId);

    /**
     * 根据菜品id查询对应的套餐id
     *
     * @param dishIds
     * @return
     */
    //select setmeal_id from setmeal_dish where dish_id in (1,2,3,4)
    List<Long> getSetmealIdsByDishIds(List<Long> dishIds);

    /**
     * 修改套餐
     *
     * @param setmeal
     */
    void update(Setmeal setmeal);

    /**
     * 批量保存套餐和菜品的关联关系
     *
     * @param setmealDishes
     */
    void insertBatch(List<SetmealDish> setmealDishes);

    /**
     * 批量删除套餐菜品表中的数据
     *
     * @param ids
     */
    void deleteBatch(List<Long> ids);

    /**
     * 根据套餐ID删除套餐菜品表
     *
     * @param id
     */
    @Delete("delete from setmeal_dish where setmeal_id = #{setmealId}")
    void deleteBySetmealId(Long id);
}
